Saab SF340B has a track/heading deviation during approach to iah.

Attributes
ACN	718630
Time
Date	200611
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : iah.airport
State Reference	TX
Altitude	msl single value : 6000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : i90.tracon
Operator	common carrier : air carrier
Make Model Name	SF 340B
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 8l
Flight Phase	descent : approach
Route In Use	approach : instrument precision arrival star : daisetta6
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : student pilot : multi engine pilot : instrument pilot : cfi pilot : commercial
Experience	flight time last 90 days : 100 flight time total : 800 flight time type : 100
ASRS Report	718630
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

While talking to approach (houston 120.05 we were on the DASETTA6 arrival on the 'downwind' for runway 8L (ILS). We were completely set up for the approach at 6000 ft MSL when approach told us to expect runway 8R ILS and handed off to approach on 120.65 immediately after. We checked in immediately and were descended and given vectors to intercept. We were rushed as a crew to brief an approach in low IFR conditions and in a hurry -- we put the ILS runway 8R frequency in the box but never switched over to active. As a result; we aligned with runway 8L and the discrepancy was not caught by ATC and tower till the FAF. We were then cleared to land runway 8L. No loss of separation or evasive action was necessary.

Original NASA ASRS Text

Title: SAAB SF340B HAS A TRACK/HDG DEV DURING APCH TO IAH.

Narrative: WHILE TALKING TO APCH (HOUSTON 120.05 WE WERE ON THE DASETTA6 ARR ON THE 'DOWNWIND' FOR RWY 8L (ILS). WE WERE COMPLETELY SET UP FOR THE APCH AT 6000 FT MSL WHEN APCH TOLD US TO EXPECT RWY 8R ILS AND HANDED OFF TO APCH ON 120.65 IMMEDIATELY AFTER. WE CHECKED IN IMMEDIATELY AND WERE DESCENDED AND GIVEN VECTORS TO INTERCEPT. WE WERE RUSHED AS A CREW TO BRIEF AN APCH IN LOW IFR CONDITIONS AND IN A HURRY -- WE PUT THE ILS RWY 8R FREQ IN THE BOX BUT NEVER SWITCHED OVER TO ACTIVE. AS A RESULT; WE ALIGNED WITH RWY 8L AND THE DISCREPANCY WAS NOT CAUGHT BY ATC AND TWR TILL THE FAF. WE WERE THEN CLEARED TO LAND RWY 8L. NO LOSS OF SEPARATION OR EVASIVE ACTION WAS NECESSARY.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.